Fixed typo. Thanks Steffi.

[fp-lecture.git] / js / confetti.min.js

var confetti={maxCount:150,speed:2,frameInterval:15,alpha:1,gradient:!1,start:null,stop:null,toggle:null,pause:null,resume:null,togglePause:null,remove:null,isPaused:null,isRunning:null};!function(){confetti.start=s,confetti.stop=w,confetti.toggle=function(){e?w():s()},confetti.pause=u,confetti.resume=m,confetti.togglePause=function(){i?m():u()},confetti.isPaused=function(){return i},confetti.remove=function(){stop(),i=!1,a=[]},confetti.isRunning=function(){return e};var t=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame,n=["rgba(30,144,255,","rgba(107,142,35,","rgba(255,215,0,","rgba(255,192,203,","rgba(106,90,205,","rgba(173,216,230,","rgba(238,130,238,","rgba(152,251,152,","rgba(70,130,180,","rgba(244,164,96,","rgba(210,105,30,","rgba(220,20,60,"],e=!1,i=!1,o=Date.now(),a=[],r=0,l=null;function d(t,e,i){return t.color=n[Math.random()*n.length|0]+(confetti.alpha+")"),t.color2=n[Math.random()*n.length|0]+(confetti.alpha+")"),t.x=Math.random()*e,t.y=Math.random()*i-i,t.diameter=10*Math.random()+5,t.tilt=10*Math.random()-10,t.tiltAngleIncrement=.07*Math.random()+.05,t.tiltAngle=Math.random()*Math.PI,t}function u(){i=!0}function m(){i=!1,c()}function c(){if(!i)if(0===a.length)l.clearRect(0,0,window.innerWidth,window.innerHeight),null;else{var n=Date.now(),u=n-o;(!t||u>confetti.frameInterval)&&(l.clearRect(0,0,window.innerWidth,window.innerHeight),function(){var t,n=window.innerWidth,i=window.innerHeight;r+=.01;for(var o=0;o<a.length;o++)t=a[o],!e&&t.y<-15?t.y=i+100:(t.tiltAngle+=t.tiltAngleIncrement,t.x+=Math.sin(r)-.5,t.y+=.5*(Math.cos(r)+t.diameter+confetti.speed),t.tilt=15*Math.sin(t.tiltAngle)),(t.x>n+20||t.x<-20||t.y>i)&&(e&&a.length<=confetti.maxCount?d(t,n,i):(a.splice(o,1),o--))}(),function(t){for(var n,e,i,o,r=0;r<a.length;r++){if(n=a[r],t.beginPath(),t.lineWidth=n.diameter,i=n.x+n.tilt,e=i+n.diameter/2,o=n.y+n.tilt+n.diameter/2,confetti.gradient){var l=t.createLinearGradient(e,n.y,i,o);l.addColorStop("0",n.color),l.addColorStop("1.0",n.color2),t.strokeStyle=l}else t.strokeStyle=n.color;t.moveTo(e,n.y),t.lineTo(i,o),t.stroke()}}(l),o=n-u%confetti.frameInterval),requestAnimationFrame(c)}}function s(t,n,o){var r=window.innerWidth,u=window.innerHeight;window.requestAnimationFrame=window.requestAnimationFrame||window.webkitRequestAnimationFrame||window.mozRequestAnimationFrame||window.oRequestAnimationFrame||window.msRequestAnimationFrame||function(t){return window.setTimeout(t,confetti.frameInterval)};var m=document.getElementById("confetti-canvas");null===m?((m=document.createElement("canvas")).setAttribute("id","confetti-canvas"),m.setAttribute("style","display:block;z-index:999999;pointer-events:none;position:fixed;top:0"),document.body.prepend(m),m.width=r,m.height=u,window.addEventListener("resize",function(){m.width=window.innerWidth,m.height=window.innerHeight},!0),l=m.getContext("2d")):null===l&&(l=m.getContext("2d"));var s=confetti.maxCount;if(n)if(o)if(n==o)s=a.length+o;else{if(n>o){var f=n;n=o,o=f}s=a.length+(Math.random()*(o-n)+n|0)}else s=a.length+n;else o&&(s=a.length+o);for(;a.length<s;)a.push(d({},r,u));e=!0,i=!1,c(),t&&window.setTimeout(w,t)}function w(){e=!1}}();